Feed-crusher.



J. L. GIBSON. FEED GRUSHBR.' APlfLIoATIoN FILED Nov.2r5,19o7.

Patented June 8, 1909.

3 SHEETS-SHEET .2,

. J. L. GIBSGN.

FEED GRUSHER.. APPLICATION FILED NOV. 25, 1907.

923,965. Patented June-8,1909.

8 SHEETS-SHEET 3.

` F0701, l. @'svolu `which the following is a iran srarnsiarnr .caricia JOHN L. GIBSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO GIBSON OAT CRUbllEl-t OO., Ol"

CHICAGO, ILLINOIS, A CORPORATION OI" ILLINOIS. i y

FEED-CRUSHEB.

To all whom 'it may concern.'

Be it known that I, JOHN L. GIBSON, a

citizen of the United States, and resident of Chicago, in the county of Cook and State of l Illinois,

I have invented certain new and usefu Improvements in Feed- Crushers, of

full, clear, and exact description.

y My invention relates to improvements in feed crushers.

The object of this invention is to provide a` machine for 'crushing or cracking open oats, barley, wheat, corn and the like so as to expose the interior. Itis highly desirable that feed of this kind be thus repared in order that animals, to Which fee( such as for instance oats or corn, is given, shall receive the greatest vamount of nutrition from thc feed. It is also of importance that the feed be merely cracked or crushed and not ioured or ground into meal and one ot' the objectsr of'this invention is to provide a erusher which does not grindlthe grain, but merelycrushes it so as'to break the grain open.' f Another object is to provide a Crusher whioh'will operate upon grain that has not been previously cleaned, and for this reason I have provided means for separating the dust and foreign articles such as nails, straw, sticks or the likefrom the grain, so that nothing but the latter may be acted upon, whereby the machine will deliver cleaned and crushed grain. Y

To these ends the invention consists in certain novel features of construction andA arrangement, and novel combinations of parts', a description of which will be. found in the following specification and the essential features of which will be more definitely pointed out in the claims.

The invention is clearly illustrated in the accompanying drawings in which- Figure 1 is a side View ol a crusher emlgpdying my improvements. Fig. 2 is an end View thereof. Fig. 3 is a longitudinal section taken on line 3--3 Fig. 2.l Fig. 4 is a plan View with certain parts broken away. Fig. 5 is a side View of an eccentric shaft. Fig. 6 is a side view of an eccentric block and'vibrator arm. Fig. 7 is a diagrammatical View of the crushing rolls showing their Patented June 8, l9Q9.

Application filed November 25, 1907. Serial N o. 403,645.

action upon the grain. Fig. 8 is a fragmental side view of a modified 'orm of construction. Fig. 9 is a plan view of the rolls used in said modified form and Fig. 10 is an end view of said rolls.

. `Referring to the drawings A is a frame of which 10 are side plates, that are connected at the front and rear by end plates l1, l2, to provide a box like trame upon which the operating parts of the machine are mounted. Struts 13, are also provided to further strengthen and reinforce the :frame thus formed.

lA receiving hopper 14, is supported above the front end of the frame vby arms or standardsl, which are bolted or otherwise secured to the sides of the frame A and hopper 14 as shown. An. adjustable gate 16 is supported in the hopper which gate regulates the flow of grain from the hopper to lthe Crusher, and said gate is supported upon a wall 17 of the hopper by bolts 18, and nuts 19-19. It is preferably obvious that the gate can be raised or lowered by taining the nuts upon the bolts, and that ,the flow of grain can thus be regulated at will.

A shaking or vibratable screen or sieve 21 is arranged between the hopper and frame A and is connected to the latter by arms 22. The arms areI bolted to the screen and frame und an adjustable connection is afforded by menus of bolts 2st and .slots 25. The screen l 2l contains a shelf 20, which acts a bot `toni for the hopper 14, but moves with the screen. The screen also contains a perforated inclined sieve plate 21a which has a series oi small perforations 26 through which fine particles such as dust may escape, and these perforations are arranged. immediately below the hopper 14, so that the dust may escape from the grain before the latter roaches the large perforations 27. The dust falls through an 0pening28, in the end plate 11, and into a suitable receptacle 2). The screen is vihraied by two arms 48 which are secured to the sides of the screen and are connected to eccentric blocks 49, that are mounted upon an eccentric shaft 23 which is driven by the main drive shaft of the machine. rIhe shat't23, is journaled in bearings 450-50Et which are carried by the frame A and said shaft `has two eccentric portions 51 that operate the and 6.)

Immediately below 'the large perforations 29 are hopper plates 30 which convey the grain upon the crushing rolls 31, 32. For crushing oats, barley, wheat ete. these rolls are preferably smooth rolls, but for cracking corn they should be tinted or corrugated as seen at 33 in Figs.'9 and 10. The rolls are mounted upon shafts 34, 35, which are journaled in boxes`36, 37, that are secured upon the side plates 10.' The shaft' 34 yis the drive shaft and bears a pulley 3S upon one end, by means of which the niachine may be belted to any .suitable source of motive power. A pulley 39 is mounted upon the other end of the shaft 34, and belted to a pulley 4() upon the shaft 23, by a belt 41.

The boxes 37 are adjustably mounted upon langes or'ledges 42 by means of bolts blocks 49. (See Figs.

, 43 and slots 44, the bolts passing through the slots 44 and ledge 42. Pressure springs 45 are employed to press the roll 32 toward the roll 31. The springs bear upon one end of the boxes 37 and the tension of saidl springs is regulated by regulating screws 46 which are threaded in lugs 47 that project up troin the ledges 42.

The forni illustrated in Figs. 8 to l0 inclusive is especially adapted for cracking open corn. In this form the rolls 33 are fluted or corrugated so -as to present ridges or edges which bite into the corn and crack it open to expose the interior thereof. The rolls in this case are geared together by gear wheels 60, which are mounted upon the'` shafts of the rolls and interrnesh with each other.

The adjusting screws 46a engage the boxes 37, by means of heads 46h, but said boxes are free to move back and forth upon said screws. Tension springs 45a are confined -between the boxes and nuts 45b threaded upon the adjusting screws 46a and hold the boxes against the heads 46". The tension upon the roll is regulated by the nuts 45". By turning the-screws in the proper diiection, the movable roll can be moved toward or away from the other one. In this manner the rolls can be properly spaced to operate upon the corn as it falls upon the rolls.

rllhe quantity of corn falling upon the rolls, being first regulated by the gate 16, the rolls Acan-be so adjusted that they will crack open y the corn without grinding it into meal..

The operation of the machine is as follows: YThe grain is fed into the hopper usually by` means of a chute (not shown) and the grain lowsout through the opening between the gate 16 and shelf 2() of the screen in a uniform. stream and lalls upon the sieve 21a. The dust drops through the fine holes in the upper end of the sieve and the grain flows down the sieve, and through the perforations 27 therein and upon the hopper plates 30, which convey it. to'thc crushing rolls 31, 32. Largo particles which cannot pass through the perlorations sieve into areceptacle 52. The grain being `fed upon the sieve in an even stream consequently falls upon the rolls in a continuous even stream, and passes between the rolls and is crushed or cracked open in its passage between them. Then starting the machine the operator inspeetssainples of the crushed grain, as it comes frointhe rolls, and ad- 'usts the tension of the springs on the roll o2, so that the pressure will be proper to crush that quantity of grain which is passing through the rolls without grinding it, and when this tension is properly adpisted the machine requires no further attention except of course such as is necessary to keep it in running order.

It is to be observed that the two iolls run at an equal speed, that is to say, their peripheral speed is equal, the result being that the grain is crushed between the rolls and not ground. If one roll were to travel at la greater speed than the other, a grinding etect would result and this is particularly undesirable in preparing the grain for feeding purposes. n

I claim as new and desire to secure by Letters Patent 1. A'crusher i'oi uneleaned feed, compris ing an inclined vibratory separating screen, having line perforations at its upper end, and coarse perforations beyond the fine perforations, a pair of suitably driven rolls, a receiving hopper having a discharge opening located above the .tine poriorations, and a second hopper located wholly below the screen for delivering the separated feed to the rolls, and having a wall which extends to the pointl of' separation between' the line and coarse perforations, substantially as and for the purpose set forth.

2. A Crusher for uneleaned feed, compris ing an inclined separating screen having line perforations at its upper end and coarse periorations beyond the line perforations, fiexi ble arms carrying said screen, a receiving hopper having a regulatable discharge opening. located above the fine pei-iterations, a pairoi" crushing rolls having an equal peripheral speed located below the screen, stationary bearings forone of the rolls, movable bearings for the, ether roll, adjustment means for ,vieldingly limiting movement oi the movable bearings away from the sta.- tionary bearings, whereby the amount of separation ot the rolls may be varied according to the quantity of `feed which is to be operated upon by the rolls, a second hopper located wholly below the screen for delivering the separated feed to the rolls and having a wall which extends to the' dividing line will roll ydown and eventually lall oil the r tit) llt() lltl Ifo

between the fine and coarse perfor-ations, a. l above application at Chicago, Ill. this 5th pulley connected with the stationary roll, a' day of November 1907. shaft having an eccentric near each end, a

A T r' pulley npon said shaft, an arm connecting JOHB' L' GIBSON 5 each eccentric With the screen and a belt Witnesses:

connecting the pulleys. J. H. CooMs.

In witness whereof I have execxited the CHARLES Ov. SHERVEY. 

